ZIP Code 20899

Zip Code: 20899
Type: Unique
Official USPS city name: Gaithersburg
Official USPS State Code: MD
Official State Name: Maryland
ZCTA: TRUE
Population: 295.0
Density: 1442.0
Primary Official County Code: 24031
Primary Official County Name: Montgomery
Official County Name: Montgomery
Official County Code: 24031
Imprecise: FALSE
Military: FALSE
Timezone: America/New_York (10:08 AM Saturday, March 29 2025-03-29 (GMT -0400))
Geo Point: 39.14384, -77.2162